- Mycotoxins in Agriculture and Food
- Plant and fungal interactions
- Insect and Pesticide Research
- Carcinogens and Genotoxicity Assessment
- Wheat and Barley Genetics and Pathology
- Trace Elements in Health
- Fatty Acid Research and Health
- Meat and Animal Product Quality
- Microbial infections and disease research
- Agricultural safety and regulations
- Plant Disease Resistance and Genetics
- Advanced Chemical Sensor Technologies
- Milk Quality and Mastitis in Dairy Cows
- Animal Nutrition and Physiology
- Selenium in Biological Systems
- Coccidia and coccidiosis research
- Analytical Chemistry and Chromatography
- Analytical chemistry methods development
- Plant Pathogens and Fungal Diseases
- Agriculture, Plant Science, Crop Management
- Polysaccharides and Plant Cell Walls
- Pesticide Residue Analysis and Safety
- Ruminant Nutrition and Digestive Physiology
- Advanced Synthetic Organic Chemistry
- Food Industry and Aquatic Biology
Alltech (United States)
2012-2024
Laboratoire de Génie Chimique
2004-2006
Centre National de la Recherche Scientifique
2004-2006
Unité Mixte de Recherche sur les Herbivores
2002-2006
Institut Pasteur
2004-2006
Institut National de la Recherche Agronomique
2004
Institut National des Sciences Appliquées de Toulouse
2004
Centre de Recherche en Nutrition Humaine d'Auvergne
2002
In a previous paper we reported that β-d-glucans isolated from Saccharomyces cerevisiae could adsorb zearalenone, reduce its bioavailability in the digestive tract, and protect animals against adverse effects. We have now investigated, vitro, kinetics of interaction between other mycotoxins several sources at three pH values found along tract (3.0, 6.0, 8.0). Acid neutral conditions gave highest affinity rates for aflatoxins B1 > deoxynivalenol ochratoxin A involved both (1 → 3)-β-d-glucans...
Mycotoxins contaminate crops worldwide and play a role in animal health performance. Multiple mycotoxins may co-occur which increase the impact on animal. To assess multiple mycotoxin profile of corn (Zea mays), we conducted 7-year survey new crop grain silage United States. A total 711 1117 samples were collected between 2013 2019 analyzed for simultaneous presence 35 using ultra-performance liquid chromatography-tandem mass spectrometry. The measured mean number per sample 4.8 (grain) 5.2...
Cell walls of yeasts and bacteria are able to complex with mycotoxins limit their bioavailability in the digestive tract when these given as feed additives animals. To identify component(s) yeast cell wall chemical interaction(s) involved formation zearalenone, four strains Saccharomyces cerevisiae differing glucan mannan content were tested. Laboratory wt292, fks1, mnn9 compared industrial S. strain sc1026. The complex-forming capacity was determined vitro by modelling plots amount toxin...
Mycotoxins are produced by fungi and potentially toxic to pigs. Yeast cell wall extract (YCWE) is known adsorb mycotoxins improve gut health in One hundred twenty growing (56 kg; experiment 1) 48 nursery piglets (6 2) were assigned four dietary treatments a 2 × factorial design for 35 days, respectively. Factors (no addition versus 1: 180 μg/kg aflatoxins 14 mg/kg fumonisins; or 2: 9 fumonisins, 1 deoxynivalenol) YCWE (0% 0.2%). Growth performance, blood, microbiome, apparent ileal...
Pigs are highly susceptible to mycotoxins. This study investigated the effects of a postbiotic yeast cell wall-based blend (PYCW; Nicholasville, KY, USA) on growth and health newly-weaned pigs under dietary challenge multiple Forty-eight (21 d old) were individually allotted four treatments, based three phase-feeding, in randomized complete block design (sex; initial BW) with two factors for 36 d. Two mycotoxins (deoxynivalenol: 2000 μg/kg supplemented phases; aflatoxin: 200 only phase 3)...
The isolated cell wall of Saccharomyces cerevisiae has some capacity to adsorb zearalenone (affinity near 30%) and reduce the bioavailability toxins in digestive tract. adsorption process was quantified vitro, data obtained when plotted with Hill's equation indicated a cooperative process. model showed that related yeast composition. This work focused on role various β-d-glucan types efficacy by sought elucidate mechanisms. Zearalenone mixed at 37 °C constant quantity alkali-soluble or...
The beta-D-glucans from the cell wall of Saccharomyces cerevisiae have shown in vitro affinity for zearalenone. For this reason, their utilization as dietary adsorbent, to reduce bioavailability zearalenone, is practical interest. Our study used powerful devices elucidate spatial conformation and molecular sites interaction between ZEN beta-D-glucans. In respect, 1H NMR spectroscopy implicated hydroxyl groups phenol moiety zearalenone complexation by laminarin, a pure beta-(1,3)-D-glucan....
Yeast cell wall-based preparations have shown efficacy against Aspergillus-based toxins but lower impact type-B trichothecenes. Presently, we investigated a combination of deoxynivalenol (DON), T-2 toxin (T2) and zearalenone (ZEA), the effect yeast wall extract (YCWE) post-biotic blend (PYCW) with objectives preventing mycotoxins’ negative effects in commercial broilers. A total 720 one-day-old male Cobb broilers were randomly allocated to: (1) control diet, (aflatoxins 6 µg/kg;...
This study aimed to investigate the effects of dietary AFB1 on growth performance, health, intestinal microbiota communities and tissue residues turbot evaluate mitigation efficacy yeast cell wall extract, Mycosorb® (YCWE) toward contaminated treatments. Nine experimental diets were formulated: Diet 1 (control): free; Diets 2–5 or 6–9: 20 μg AFB1/kg diet 500 + 0%, 0.1%, 0.2%, 0.4% YCWE, respectively). The results showed that 6 significantly decreased concentrations TP, GLB, C3, C4, T-CHO, TG...
Mycotoxins are naturally occurring toxins that can affect livestock health and performance upon consumption of contaminated feedstuffs. To mitigate the negative effects mycotoxins, sequestering agents, adsorbents, or binders be included to feed interact with toxins, aiding their passage through gastrointestinal tract (GI) reducing bioavailability. The parietal cell wall components Saccharomyces cerevisiae have been found in vitro such as, but not limited to, aflatoxin B1 (AFB1), improve...
Frequently reported occurrences of deoxynivalenol (DON), beauvericin (BEA), and, to a lesser extent, ochratoxin A (OTA) and citrinin (CIT) in ruminant feed or feedstuff could represent significant concern regarding safety, animal health, productivity. Inclusion yeast cell wall-based mycotoxin adsorbents feeds has been common strategy mitigate adverse effects mycotoxins. In the present study, an vitro approach combining adsorption isotherm models bioassays was designed assess efficacy wall...
RATIONALE Mycotoxins are typically present in grain and also concentrated distillers dried grains with solubles (DDGS), common feed ingredients for food animals. The diversity of mycotoxins matrices has made the routine detection quantification both complex prohibitively expensive. METHODS Ultra‐performance liquid chromatography/electrospray ionization triple quadrupole (UPLC/ESI‐TQD) (tandem mass spectrometry, MS/MS) 13 C‐labeled isotopic dilution was used to analyze internal standard...
The sequestration/inactivation of the oestrogenic mycotoxin zearalenone (ZEA) by two adsorbents--yeast cell wall extract (YCW) and hydrated sodium calcium aluminosilicate (HSCAS)--was studied in three laboratory models: (1) an vitro model was adapted from referenced methods to test for sequestrant sorption capabilities under buffer conditions at pH values using liquid chromatography coupled a fluorescence detector toxin quantification; (2) second used evaluate stability according variations...
Ochratoxin A (OTA) is a common mycotoxin contaminant in animal feed. When absorbed from the gastrointestinal tract, OTA has propensity for pathological effects on health and deposition tissues. In this study, potential of yeast cell wall extracts (YCWE) to adsorb was evaluated using an vitro method which consecutive digestion events were simulated. Low pH markedly increased binding YCWE, reversed with 6.5. Overall, analysis revealed that 30% adsorbed YCWE. Additional computational molecular...
A random-effects meta-analysis was conducted to investigate the effect of mycotoxins (MT) without or with inclusion yeast cell wall extract (YCWE, Mycosorb®, Alltech, Inc., Nicholasville, KY, USA) on laying hen performance. total 25 trials were collected from a literature search, and data extracted 8 these that met criteria, for 12 treatments 1774 birds. Laying hens fed MT had lower (p < 0.05) body weight (BW) by −50 g, egg production −6.3 percentage points, −1.95 g than control (CTRL)....
The chronic intake of naturally multi-mycotoxin contaminated feed by broilers with or without titers Yeast Cell Wall Extract (YCWE, a.k.a Mycosorb A+